CN207801617U - A kind of electric machine structure - Google Patents

Abstract

The utility model discloses a kind of electric machine structures, including motor front end cover, stator module, back end cover for motor, magnet steel, rotor core component；Magnet steel is packed into rotor core component, and then whole to be packed into stator module, motor front end cover and back end cover for motor are separately mounted on stator module both ends；Motor front end cover and motor rear end are covered with circular arc boss, and circular arc boss is used for assembling positioning.The front and rear cover of the utility model is shaped using aluminium alloy compression casting, assembly with stator core assemblies is coordinated using point contact transition, it can assembly technology easy to implement, it can guarantee the accurate positioning of electric motor end cap and stator core again, the die casting manufacturing process of end cap is simple, mass production easy to implement, and cost is relatively low.

Description

A kind of electric machine structure

Technical field

The utility model belongs to electrical equipment, and in particular to a kind of improvement of motor end cover assembling structure.

Background technology

Current convention square brushless motor structure, end cap are installed frequently with bearing outdoor coil pedestal and stator punching endoporus The installation form of positioning occupies motor axial direction stock size in this way, while because bearing chamber extend into stator interior, rotor cannot Accomplish size identical with stator, wastes the length resource of stator core, cannot reach due under due length dimension Power requirement, while causing the unnecessary iron loss of stationary part.

Invention content

In view of this, the utility model provides a kind of electric machine structure, by end cover designs addition circular arc boss positioning, in end cap When being installed with stator core, ensure accurate installation, normal use.

A kind of electric machine structure, including motor front end cover, stator module, back end cover for motor, magnet steel, rotor core component；Magnetic Steel is packed into rotor core component, and then whole to be packed into stator module, motor front end cover and back end cover for motor are separately mounted to stator On component both ends；Motor front end cover and motor rear end are covered with circular arc boss, and circular arc boss is used for assembling positioning.

Preferably, the cross section of stator module is the square of a quadrangle notch, is in cross.

Preferably, motor front end cover cross section is in square, sets that there are one match with stator module on the square Cross boss, circular arc boss is located on four sides of cross boss.

Preferably, back end cover for motor be in the matched cross of stator module, circular arc boss is located at matches with stator module It is combined on four sides of dress.

Preferably, circular arc boss undulate extension is distributed on four straight lines of cross shape.

Preferred motor front end cover and back end cover for motor use die-cast aluminum alloy material.

Preferably, stator core is made of silicon strip punching press.

After adopting the above technical scheme, can assembly technology and electric motor end cap easy to implement and stator core Accurate positioning increases the maximum length of motor rotor component while ensureing motor assembly reliability, improves motor volume Power density greatly reduces iron loss caused by original product deficiency, improves product efficiency, cost-effective.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the sectional view of the utility model.

Fig. 3 is the exploded view of the utility model.

Fig. 4 is the structural schematic diagram of the utility model motor front end cover.

Fig. 5 is the structural schematic diagram of the utility model stator module.

Fig. 6 is the structural schematic diagram of the utility model back end cover for motor.

Specific implementation mode

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

Please refer to Fig.1-6, a kind of electric machine structure, including motor front end cover 10, stator module 30, back end cover for motor 40, magnetic Steel 60, rotor core component 70；Magnet steel 60 is packed into rotor core component 70, then whole to be packed into stator module 30, motor front end Lid 10 and back end cover for motor 40 are separately mounted on 30 both ends of stator module；Motor front end cover 10 and back end cover for motor 40 are equipped with circle Arc boss 20, circular arc boss 20 are used for assembling positioning.

Referring to Fig. 5, the cross section of stator module 30 is the square of a quadrangle notch, it is in cross, stator module 30 include stator body 31, coil holder mounting groove 32, threaded mounting hole 33.

Referring to Fig. 4,10 cross section of motor front end cover is in square, set on the square there are one with stator module 30 Matched cross boss, circular arc boss 20 are located on four sides of cross boss, and 20 undulate of circular arc boss extends It is distributed on four straight lines of cross shape.

Referring to Fig. 6, back end cover for motor 40 is in be located at and determine with 30 matched cross of stator module, circular arc boss 20 On four sides of the cooperation assembling of sub-component 30.

- 6 are please referred to Fig.1, motor front end cover 10 and back end cover for motor 40 use die-cast aluminum alloy material, stator core to use Silicon strip punching press is made.Electric machine rotor iron core component includes rotor core 70 and pole set 80, magnet steel 60 is packed on rotor core 70, so It is fitted into afterwards in pole set 80.The motor rotor core component for having assembled magnet steel 60 is integrally fitted into coil holder 50, and then one is packed into fixed In sub-component 30.It is packed into motor front end cover 10 and back end cover for motor 40 at the both ends of stator module 30 respectively, is gently pressed with hand Motor front end cover 10, back end cover for motor 40 are installed in place.Motor front end cover 10 and back end cover for motor 40 are arc-shaped because using Boss 20 is positioned with 30 outer surface of stator module, is easy assembly, to reduce assembly technology difficulty to the maximum extent, reduces life Produce manufacturing cost.

- 6, when motor assembles are please referred to Fig.1, end cap is coordinated with stator core using transition, and the positioning on end cap is using circle Arc boss 20, while having pattern draft, practical is that point contact positions, and is conveniently operated installation.The end cap of the utility model uses aluminium Alloy die cast shapes, assembly with stator module 30 using point contact transition cooperation, can assembly technology easy to implement, and can protect Demonstrate,prove the accurate positioning of electric motor end cap and stator core.The die casting manufacturing process of end cap is simple, mass production easy to implement, and at This is relatively low.While ensureing motor assembly reliability, the maximum length of motor rotor component is increased, improves motor volume work( Rate density.Iron loss caused by greatly reducing original product deficiency improves product efficiency, cost-effective.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should all be included in the utility model Within the scope of protection.

Claims (6)

1. a kind of electric machine structure, including motor front end cover, stator module, back end cover for motor, magnet steel, rotor core component；It is described Magnet steel is packed into the rotor core component, then the whole loading stator module, after the motor front end cover and the motor End cap is separately mounted on the stator module both ends；It is characterized in that：The motor front end cover and the back end cover for motor are set There are circular arc boss, the circular arc boss to be used for assembling positioning.

2. a kind of electric machine structure as described in claim 1, it is characterised in that：The cross section of the stator module is a quadrangle The square of notch is in cross.

3. a kind of electric machine structure as claimed in claim 2, it is characterised in that：The motor front end cover cross section is in square, There are one being set on the square cross is located at the matched cross boss of the stator module, the circular arc boss On four straight lines of shape boss fitting surface.

4. a kind of electric machine structure as claimed in claim 2, it is characterised in that：The back end cover for motor be in and the stator module Matched cross, the circular arc boss are located on four straight lines assembled with stator module cooperation.

5. a kind of electric machine structure as described in claim 3 or 4, it is characterised in that：The circular arc boss undulate, which extends, to be divided Cloth is on four straight lines of cross shape.

6. a kind of electric machine structure as described in claim 1, it is characterised in that：The motor front end cover and the back end cover for motor Using die-cast aluminum alloy material.